Our Data Sources
18, Onslow Gardens, Wallington has a single entry in the Land Registry from June 2023 and a single entry in the EPC database dated September 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 18, Onslow Gardens, Wallington is in very good condition we estimate a sale value of £756,561 and a rental value of £2,881 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £670,097 and a rental value of £2,552 per month.
Plot Size
According to data from HM Land Registry, 18, Onslow Gardens, Wallington sits on a plot of 475 m2.
We have plot size data on 15 out of 15 other houses in the postcode and 18, Onslow Gardens, Wallington sits on the 10th largest plot.
Energy Efficiency
18, Onslow Gardens, Wallington has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 15 Sep 2021.
The property is connected to mains gas and has single glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
According to HM Land Registry, 18, Onslow Gardens, Wallington was last sold on 1st June 2023 for £740,000 and was recorded as a freehold house.
The property has only had this single sale since 1995.
Since June 2023, the market for similar properties has dropped by 5.6%.
- Sold Jun 2023£740,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 73 sales of properties similar to 18, Onslow Gardens, Wallington within a radius of 380 metres since 2015.
The most recent example is 14, Clyde Road, Wallington, SM6 8PZ, a freehold house which sold for £590,000 on the 18th March 2026.
Read more about house prices in SM6.
- Sold Mar 2026£590,000 | 4 Bed House14, Clyde Road, Wallington, SM6 8PZ14, Clyde Road, Wallington, SM6 8PZ
- Sold Oct 2025£780,000 | 5 Bed House10, Stanley Gardens, Wallington, SM6 9QW10, Stanley Gardens, Wallington, SM6 9QW
- Sold Aug 2025£760,000 | 4 Bed House55, Onslow Gardens, Wallington, SM6 9QH55, Onslow Gardens, Wallington, SM6 9QH
- Sold Aug 2025£665,000 | 4 Bed House73, Onslow Gardens, Wallington, SM6 9QH73, Onslow Gardens, Wallington, SM6 9QH
- Sold Jul 2025£710,000 | 4 Bed House26, Blenheim Gardens, Wallington, SM6 9PP26, Blenheim Gardens, Wallington, SM6 9PP
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £454,488, ranging from £133,852 to £902,100.
- 16 Onslow Gardens
5 Bed House | 10 m | Est. Value: £873,554
- 20 Onslow Gardens
5 Bed House | 10 m | Est. Value: £840,693
- 22 Onslow Gardens
5 Bed House | 18 m | Est. Value: £853,439
- 24 Onslow Gardens
5 Bed House | 27 m | Est. Value: £902,100
- 8 Onslow Gardens
4 Bed House | 35 m | Est. Value: £743,927
Location Comparison
Onslow Gardens, Wallington, SM6 has a total of 184 addresses. According to our analysis of all the public data, 18, Onslow Gardens, Wallington is the 52nd largest and the 52nd most expensive property on the street.
When compared to the postcode district it is £285k more expensive than the average property in SM6.
More reading links
Schools Nearby
- Bandon Hill Primary School600 m away
- Wood Field Primary School700 m away
- Foresters Primary School800 m away
- Wallington High School for Girls900 m away
- Wilson's School1.4 km away
- Wallington County Grammar School1.4 km away
More reading links
Public Transport Nearby
- Wallington|500 m away
- Carshalton Beeches|1.6 km away
- Carshalton|1.9 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












